Deep-sea reverse osmosis desalination for energy efficient low salinity enhanced oil recovery

Fasano, Matteo; Morciano, Matteo; Bergamasco, Luca; Chiavazzo, Eliodoro; Zampato, Massimo; Carminati, Stefano; Asinari, Pietro

doi:10.1016/j.apenergy.2021.117661

Cited by 9 publications

(2 citation statements)

References 62 publications

(54 reference statements)

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“… 7 The concentration of this hazardous heavy metal must therefore be eliminated or reduced in the aquatic environment. Several treatment methods, including adsorption, membrane separation, 8 coagulation–flocculation, 9 osmosis, 10 and chemical precipitation 11 have been used to get rid of harmful metal ions. Adsorption is a common treatment method because it is affordable, easy to use, and especially environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

et al. 2023

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“…Lately, low salinity water injection (LSWI) and smart water injection (SWI) showed positive effects in the recovery factor of oil reservoirs 3 . Various laboratory experiments and field applications have shown increasing oil production because of modification of ion amount or reducing salinity level of seawater and increasing the dilution ratio of seawater [4][5][6][7][8][9][10][11] . LSWI and SWI can be applied as improved oil production methods after changing the wettability of oil reservoirs [12][13][14][15][16] .…”

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confidence: 99%

Optimization of salinity and composition of injected low salinity water into sandstone reservoirs with minimum scale deposition

Bijani,

Khamehchi,

Shabani

2023

Sci Rep

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In this study, a mechanistic and comprehensive examination of the impact of the scale formation situation of different diluted seawater levels was conducted to investigate the influence of important factors on the performance and efficiency of low salinity water. To clarify the effective participating mechanisms, scale precipitation by compatibility test, field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDX) analysis, zeta potentials as surface charge, ion concentration changes, contact angle, pH, CO2 concentration, electrical conductivity, and ionic strength were analyzed. The results showed that increasing the dilution time to the optimal level (10 times-diluted seawater (SW#10D)) could effectively reduce the amount of severe precipitation of calcium carbonate (CaCO3) and calcium sulfate (CaSO4) scales. However, the reduction in CaCO3 scale precipitation (due to mixing different time diluted seawater with formation brine) and its effect on the wettability alteration (due to the change in surface charge of OLSW/oil and sandstone/OLSW) had higher impacts. The zeta potential results have shown that OLSW with optimum salinity, dilution, and ionic composition compared to different low salinity water compositions could change the surface charge of OLSW/oil/rock (− 16.7 mV) and OLSW/rock (− 10.5 mV) interfaces toward an extra negatively charged. FESEM and contact angle findings confirmed zeta potential results, i.e. OLSW was able to make sandstone surface more negative with diluting seawater and wettability changes from oil-wet toward water-wet. As a result, SW#10D was characterized by minimum scaling tendency and scale deposition (60 mg/l), maximum surface charge of OLSW/oil/rock (− 16.7 mV), and the potential of incremental oil recovery due to wettability alteration toward more water-wetness (the oil/rock contact angle ~ 50.13°) compared with other diluted seawater levels.

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A system-level CFD simulation model for investigating the energy dissipation mechanism of seawater pump and rotary energy recovery device in SWRO desalination system

Yin,

Zhang,

Nie

et al. 2024

Desalination

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Deep-sea reverse osmosis desalination for energy efficient low salinity enhanced oil recovery

Cited by 9 publications

References 62 publications

Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

Optimization of salinity and composition of injected low salinity water into sandstone reservoirs with minimum scale deposition

A system-level CFD simulation model for investigating the energy dissipation mechanism of seawater pump and rotary energy recovery device in SWRO desalination system

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